Igneous rocks generally range from being mafic in composition…

Igneous rocks generally range from being mafic in composition meaning they are relatively low in [select] and high in [select], to felsic, which are relatively high in [select]. A felsic rock will typically have [select] silica.

Select the following

70%-75%
60%-65%
Olivine
Iron and magnesium
Minerals
Silica
45%-50%

Place this order or similar order and get an amazing discount. USE Discount code “GET20” for 20% discount